The answer to 11 feet 9 inches plus 8 feet 10 inches (11' 9" + 8' 10") is displayed below:
20 feet 7 inches
Here is how we calculated 11 feet 9 inches plus 8 feet 10 inches to get the answer above:
First, we converted feet to inches so we are only dealing with inches.
11 feet 9 inches = 141 inches
8 feet 10 inches = 106 inches
Then, we added the inches together to get the total number of inches:
141 + 106 = 247 inches.
Finally, we converted 247 inches into feet and inches to get the answer.
11' 9" + 8' 10" = 20' 7"
Note: There are 12 inches in a foot. Thus, you multiply feet by 12 to get only inches, and
to make it back to feet and inches we divided total number of inches by 12.
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